orange_hand Posted January 28, 2013 Report Share Posted January 28, 2013 Hi guys, I am currently looking for a PSU suitable for an AOUT module. I saw the bulk order for the Meanwell RPT-60B and wonder if this works well together with the AOUT: Meanwell RPT-60B http://www.meanwell.com/search/RPT-60/RPT-60-spec.pdf Can anybody confirm whether this works fine on an AOUT module or not ? I also found a linear bipolar one from Doepfer, which is very expensive and I wonder if there are other options out there: Doepfer A-100 PSU2 http://www.thomann.de/de/doepfer_a_100psu2.htm I would appreciate if we could collect the PSU’s in this thread suitable for the AOUT Cheers orange Quote Link to comment Share on other sites More sharing options...
jojjelito Posted January 28, 2013 Report Share Posted January 28, 2013 The MeanWell looks like it will do the trick. You could add some extra big and small filter capacitors at the Aout input if you're particular about switching noise. Quote Link to comment Share on other sites More sharing options...
NorthernLightX Posted January 28, 2013 Report Share Posted January 28, 2013 AOUT only requires +12v, GND and -12v, +5V is delivered by the Core in the default configuration. Any PSU that delivers those voltages will work. If you choose a switching PSU like the Mean Well it is good practice to place some capacitors between the PSU and your project. Also mind the switching frequency. The Mean Well has a separate +5v line that could be connected to the AOUT board, but then it would be wise not to connect the +5v from the Core to the AOUT. Quote Link to comment Share on other sites More sharing options...
orange_hand Posted January 28, 2013 Author Report Share Posted January 28, 2013 (edited) ok, so you can supply the core32 as well as the AOUT with one PSU ? It is just important to connect the +5V for the AOUT either directly from the Meanwell or indirectly through the Core32, correct ? If you supply the Core32 from the +5V rail of the meanwell, do you still need a voltage 5V regulator on the core board ? Cheers orange Edited January 28, 2013 by orange_hand Quote Link to comment Share on other sites More sharing options...
ilmenator Posted January 28, 2013 Report Share Posted January 28, 2013 If you supply the Core32 from the +5V rail of the meanwell, do you still need a voltage 5V regulator on the core board ? No, because that is a clean and stable 5V that can be fed directly into the core board's components. I am doing that on my SEQv4. Quote Link to comment Share on other sites More sharing options...
Barcode Posted January 29, 2013 Report Share Posted January 29, 2013 I found this one when looking for a fully enclosed external PSU. I like the idea of only needing a 5pin DIN to hook it up. Meanwell P25A13D-R1B http://www.jameco.com/Jameco/Products/ProdDS/190960.pdf Quote Link to comment Share on other sites More sharing options...
orange_hand Posted January 29, 2013 Author Report Share Posted January 29, 2013 Thank you guys ! Quote Link to comment Share on other sites More sharing options...
latigid on Posted January 31, 2013 Report Share Posted January 31, 2013 Just in case weren't finished... has anybody considered using a charge pump (i.e. a DC-DC step up converter) or similar to power the AOUT board? We're talking 20 mA max for 2x TL074. Quote Link to comment Share on other sites More sharing options...
NorthernLightX Posted February 1, 2013 Report Share Posted February 1, 2013 @mwidhalm: the datasheet says nothing about the switching frequency of that PSU (or at least I couldnt find it). Beware that it might be in the audio range. @latigid on: if it would be possible to create -12v from +5v with your suggested solution, you still would need to power additional modules that you need the CV signals for. If those are in another box with a separate PSU it might work, I'm no expert. At least I would rather buy a known good psu than tinker with something else, I've had too many PSU related issues that put me off completely for a good while. Quote Link to comment Share on other sites More sharing options...
freddy Posted February 1, 2013 Report Share Posted February 1, 2013 @latigid on: if it would be possible to create -12v from +5v with your suggested solution, you still would need to power additional modules that you need the CV signals for. If those are in another box with a separate PSU it might work, I'm no expert. At least I would rather buy a known good psu than tinker with something else, I've had too many PSU related issues that put me off completely for a good while. I'm about to use Recom RS-0512D in another project (being able to convert 5V to +/-12V), also, it's being used in mistralXG design (and I assume successfully) that was discussed some time ago. Maybe definitely worth a try but it's only up to 3W, which still should be plenty for few opamps. Hope this helps, freddy Quote Link to comment Share on other sites More sharing options...
latigid on Posted February 1, 2013 Report Share Posted February 1, 2013 (edited) From Mouser there are 0.5W and 1W solutions for 10,39 and 18,26€ respectively. 70 kHz switching frequency, which I would hope to be high enough to avoid problems, but I'm not sure! The Recom unit seems to have a higher switching frequency of 100 kHz or more, so it is probably better in that regard. http://eu.mouser.com/ProductDetail/Murata-Power-Solutions/NMJ0512SC/?qs=sGAEpiMZZMtwaiKVUtQsNdN9l48nzt7a%252bz8taXcceL0%3d http://eu.mouser.com/ProductDetail/Murata-Power-Solutions/NMS0512C/?qs=sGAEpiMZZMtwaiKVUtQsNcW9zb9tavYg9JdPS%252b2oOa4%3d http://www.mouser.com/ds/2/281/kdc_nmj-19483.pdf Edited February 1, 2013 by latigid on Quote Link to comment Share on other sites More sharing options...
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